document$.subscribe(({ body }) => {
    renderMathInElement(body, {
        delimiters: [
            { left: "$$",  right: "$$",  display: true },
            { left: "$",   right: "$",   display: false },
            { left: "\\(", right: "\\)", display: false },
            { left: "\\[", right: "\\]", display: true }
        ],
    })
})
